.middle {
    margin: 50px 0;
    display: flex;
    justify-content: center;
}

.middle > div {
    border: 1px solid red;
    width: 80%;
}

.middle > div > div:first-child {
    color: rgb(230, 145, 55);
    font-size: 30px;
    padding: 10px;
    border-bottom: 1px solid red;
}

.middle > div > div:nth-child(2) {
    display: flex;
    justify-content: center;
    text-align: center;
}

/*留言内容*/
.middle > div > div:nth-child(2) > div > div:first-child {
    /*width: 600px;*/
    margin: 50px 0;

}

.middle > div > div:nth-child(2) > div > div:nth-child(2) {
    display: flex;
    justify-content: center;
}

.middle > div > div:nth-child(2) > div > div:nth-child(2) > div >div>div:nth-child(2)[su=peng]{
    width: 600px;
    height: 50px;
    margin: 10px 0;
    font-size: 30px;
    padding: 10px 10px 0;
    border: 1px solid black;
}

/*.middle > div > div:nth-child(2) > div > div:nth-child(2) > div input[type=text] {*/
/*    width: 600px;*/
/*    height: 50px;*/
/*    margin: 10px 0;*/
/*    font-size: 30px;*/
/*    padding: 0 10px;*/
/*}*/

.middle > div > div:nth-child(2) > div > div:nth-child(2) > div textarea {
    height: 100px;
    width: 600px;
    margin: 10px 0;
    font-size: 20px;
    padding: 0 10px;
}

.middle > div > div:nth-child(2) > div > div:nth-child(2) > div > div {
    text-align: left;
}

/*.middle > div > div:nth-child(2) > div > div:nth-child(2) > div > div:last-child{*/
/*    display: flex;*/
/*    justify-content: center;*/
/*}*/
.middle > div > div:nth-child(2) > div > div:nth-child(2) > div > div:last-child > div {
    width: 200px;
    height: 50px;
    background-color: rgb(230, 145, 55);
    margin: 20px auto;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
    color: white;
    border-radius: 0 0 45px 0;
    box-shadow: 0 0 10px 10px red;
}
